test: skip URI tests for sqlcipher

since the compile-time option may not be on

test/test_database_uri.rb

@@ -6,6 +6,7 @@ module SQLite3
   class TestDatabaseURI < SQLite3::TestCase
     def test_open_absolute_file_uri
       skip("windows uri paths are hard") if windows?
+      skip("sqlcipher may not allow URIs") if SQLite3.sqlcipher?
 
       Tempfile.open "test.db" do |file|
         db = SQLite3::Database.new("file:#{file.path}")
@@ -16,6 +17,7 @@ def test_open_absolute_file_uri
 
     def test_open_relative_file_uri
       skip("windows uri paths are hard") if windows?
+      skip("sqlcipher may not allow URIs") if SQLite3.sqlcipher?
 
       Dir.mktmpdir do |dir|
         Dir.chdir dir do
@@ -29,6 +31,7 @@ def test_open_relative_file_uri
 
     def test_open_file_uri_readonly
       skip("windows uri paths are hard") if windows?
+      skip("sqlcipher may not allow URIs") if SQLite3.sqlcipher?
 
       Tempfile.open "test.db" do |file|
         db = SQLite3::Database.new("file:#{file.path}?mode=ro")